The Murray cod, named Arnie after Australia's recently retired Olympic champion Ariarne Titmus, was first tagged in 2022.

An Australian freshwater Murray cod has surprised scientists by swimming a marathon 860 kilometers (530 miles) along a major ...

After the largest dam-removal effort in U.S. history, salmon appear to be thriving in the Klamath River, though some are ...

Need some inspiration for staying calm amidst the stress and chaos of daily life? Perhaps it’s time to set aside the yoga videos and consider our aquatic friends, the fish. New research indicates that ...

These Palm Beach fish deserve a gold medal in artistic swimming. Take a look at this school of Crevalle jack fish that were spotted swimming in a heart-shaped formation right off the shores of Juno ...

A fish has been captured by researchers swimming at never-before-recorded depths of over five miles below the ocean’s surface off the coast of Japan, researchers announced. The unknown species of ...

Baby coral reef fishes can outpace all other baby fishes in the ocean, swimming around 15-40 body lengths per second. A new study has found baby coral reef fishes can outpace all other baby fishes in ...

Stacey O’Shea of The Garden Sanctuary turned the fish's world around — literally — by crafting it a lifejacket out of tubing and AC parts Kelli Bender is the Pets Editor at PEOPLE. She has been ...

If you do much walking through Milwaukee neighborhoods, say in the Historic Third Ward or Bay View, you’ve probably stumbled across vibrant schools of fish painted on the sidewalks. They're koi, the ...